Effect of Nitrogen Load and Water Temperature on Treatment Efficiency of Anoxic Reactor Using Submerged Bed Process
1995 年 31 巻 1 号 p. 25-31
詳細
1995 年 31 巻 1 号 p. 25-31
The effects of nitrogen load and water temperature on the treatment efficiency were studied using an anoxic rector equipped with a lace-like contact media. Experiments were conducted under various nitratenitrogen (NO3-N) loads and water temperatures. Temperature coefficients (θ) of 1.046-1.064 were calculated. An equation expressing the relationship between NOx-N removal efficiency, the NOx-N load and water temperature was obtained. From the equation, the NOx-N load that allows a high NOx-N removal efficiency in the anoxic reactor can be estimated, and the value was greatly effected by water temperature. Denitrification rates of 2.4-4.5 mg-N/g-SS·hr under water temperature of 30°C were obtained.
